Abstract: The reaction of WO₃ and Me₃CO (Me = Li, Na, K, Rb, Cs) series in solid phase has been studied by using the MOMtype-Derivatograph.The chemical behavior of reaction process was indicated by TGand DTAcurves.The kinetic parameters, activation energy (E), reaction order (n), frequency factor (A) and reaction velocity constant (K) were evaluated by treating TGcurves with Coats-Redfern method.For the system of WO³⁺Na₂CO₃, the Evalue calculated by Coats-Redfern method (347.8 KJ/mol) is consistent with the value (372.9 KJ/mol) obtained by Kissinger method.